Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6SSN callsign genealogy
Currently held by Johnson, William T
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K6SSN's current licensee, walking backwards.
- Johnson, William TCAgranted 2014-09-22cancelled 2015-10-14
Successor callsigns
Callsigns held now by people who previously held K6SSN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6SSN, oldest first.
- TRAPP, ROGER R CA1987-11-03 → cancelled 1999-11-04
- Adamski, Ryan C WI2002-07-26 → cancelled 2014-07-29
- Johnson, William T CA2026-06-30 active